Construction method for long span steel cap beam for high-speed rails crossing existing railways
An existing railway and long-span technology, applied in bridges, bridge construction, erection/assembly of bridges, etc., can solve the problems of low construction efficiency, easy settlement of construction bases, and limited space of construction bases.
Inactive Publication Date: 2017-03-15
WUHAN GUANGZHOU RAILWAY PASSENGER DEDICATED LINE CO LTD
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Problems solved by technology
[0004] In view of this, the embodiment of the present invention provides a construction method for a high-speed rail crossing an existing railway long-span steel cover beam, which can improve construction efficiency and construction quality, and solve the problem of existing steel cover beam construction across an existing railway. The space of the construction base is limited, and the construction base is prone to subsidence, resulting in low construction efficiency and unguaranteed construction quality.
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[0039] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0040] It should be clear that the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0041] figure 1 It is a schematic flow chart of the construction method of the high-speed rail crossing the long-span steel cover beam of the existing railway according to the embodiment of the present invention. see figure 1 , the process includes:
[0042] Step 101, performing site hardening treatment on the construction base;
[0043] In this embodiment, as an optional embodiment, before performing site hardening treatment on the construction base, the method further includes:
[0044] Obtain the ground bearin...
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Abstract
The invention discloses a construction method for a long span steel cap beam for high-speed rails crossing existing railways. The method relates to the railway and bridge construction technology, and can improve the construction efficiency and construction quality. The method comprises the steps of conducting ground hardening treatment to the construction base; performing preprocessing to the steel cap beam, and transporting the preprocessed steel cap beam to the hardened construction base; assembling the preprocessed steel cap beam on the spot; hoisting and assembling the assembled steel cap beam based on a construction pier body. The construction method for the long span steel cap beam for the high-speed rails crossing the existing railways applies to conducting construction to the long span steel cap beam crossing the existing railways and being used for the high-speed rails.
Description
technical field [0001] The invention relates to a railway bridge construction technology, in particular to a construction method for a high-speed railway spanning an existing railway long-span steel cover beam. Background technique [0002] High-speed rail technology is an important research achievement of my country's independent innovation. It involves cutting-edge technology and is conducive to improving the manufacturing level of high-end technical equipment in my country. Therefore, accelerating the construction of high-speed rail network has great practical and long-term significance. [0003] At present, due to the relatively complete coverage of my country's existing railway network, in the construction of high-speed railways, it is necessary to cross more existing railways, which makes the span of steel cap beams used for high-speed railway construction larger. During the construction of steel cap beams with large spans, large-scale equipment or super-large equipmen...
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Login to View More IPC IPC(8): E01D21/00
CPCE01D21/00
Inventor 高军陆晓峰林晓罗东青蔡荣喜
Owner WUHAN GUANGZHOU RAILWAY PASSENGER DEDICATED LINE CO LTD